Vacuum source-field correlations and advanced waves in quantum optics
The solution to the wave equation as a Cauchy problem with prescribed fields at an initial time $t=0$ is purely retarded. Similarly, in the quantum theory of radiation the specification of Heisenberg picture photon annihilation and creation operators at time $t \gt 0$ in terms of operators at $t=0$...
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| Format: | Article |
| Language: | English |
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Verein zur Förderung des Open Access Publizierens in den Quantenwissenschaften
2018-01-01
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| Series: | Quantum |
| Online Access: | https://quantum-journal.org/q-2018-01-18-46/pdf/ |